kmath-tensors/space.kscience.kmath.tensors.core/DoubleTensor2D

DoubleTensor2D

class DoubleTensor2D(val rowNum: Int, val colNum: Int, val source: OffsetDoubleBuffer) : DoubleTensor, MutableStructure2D<Double> (source)

Constructors

DoubleTensor2D

constructor(rowNum: Int, colNum: Int, source: OffsetDoubleBuffer)

Functions

argMax

open override fun StructureND<Double>.argMax(dim: Int, keepDim: Boolean): IntTensor

Returns the index of maximum value of each row of the input tensor in the given dimension dim.

open override fun StructureND<Int>.argMax(dim: Int, keepDim: Boolean): IntTensor

Returns the index of maximum value of each row of the input tensor in the given dimension dim.

argMin

open override fun StructureND<Double>.argMin(dim: Int, keepDim: Boolean): Tensor<Int>

Returns the index of minimum value of each row of the input tensor in the given dimension dim.

open override fun StructureND<Int>.argMin(dim: Int, keepDim: Boolean): Tensor<Int>

Returns the index of minimum value of each row of the input tensor in the given dimension dim.

asDoubleBuffer

fun DoubleTensor.asDoubleBuffer(): OffsetDoubleBuffer

asDoubleTensor

fun StructureND<Double>.asDoubleTensor(): DoubleTensor

Transforms StructureND of Double to DoubleTensor. Zero copy if possible, but is not guaranteed

asDoubleTensor1D

fun DoubleTensor.asDoubleTensor1D(): DoubleTensor1D

A zero-copy cast to 1D structure. Changes in resulting structure are reflected on original tensor.

asDoubleTensor2D

fun DoubleTensor.asDoubleTensor2D(): DoubleTensor2D

A zero-copy cast to 2D structure. Changes in resulting structure are reflected on original tensor.

asIntTensor

fun StructureND<Int>.asIntTensor(): IntTensor

Casts Tensor of Int to IntTensor

copyToTensor

fun StructureND<Double>.copyToTensor(): DoubleTensor

Create a mutable copy of given StructureND.

det

open override fun StructureND<Double>.det(): DoubleTensor

Computes the determinant of a square matrix input, or of each square matrix in a batched input. For more information: https://pytorch.org/docs/stable/linalg.html#torch.linalg.det

div

open operator fun StructureND<Double>.div(k: Number): StructureND<Double>

open operator override fun StructureND<Double>.div(arg: StructureND<Double>): DoubleTensor

Each element of the tensor arg is divided by each element of this tensor. The resulting tensor is returned.

open operator override fun StructureND<Double>.div(arg: Double): DoubleTensor

Divide by the scalar arg each element of this tensor returns a new resulting tensor.

open operator override fun StructureND<Double>.div(arg: StructureND<Double>): DoubleTensor

Each element of the tensor arg is divided by each element of this tensor. The resulting tensor is returned.

divAssign

open operator override fun Tensor<Double>.divAssign(arg: StructureND<Double>)

Each element of this tensor is divided by each element of the arg tensor.

open operator override fun Tensor<Double>.divAssign(value: Double)

Divides by the scalar value each element of this tensor.

open operator override fun Tensor<Double>.divAssign(arg: StructureND<Double>)

Each element of this tensor is divided by each element of the arg tensor.

dot

open infix override fun StructureND<Double>.dot(other: StructureND<Double>): DoubleTensor

open infix override fun StructureND<Int>.dot(other: StructureND<Int>): IntTensor

Matrix product of two tensors.

elements

@PerformancePitfall

open override fun elements(): Sequence<Pair<IntArray, Double>>

infix fun Tensor<Double>.eq(other: Tensor<Double>): Boolean

Compares element-wise two tensors. Comparison of two Double values occurs with 1e-5 precision.

fun Tensor<Double>.eq(other: Tensor<Double>, epsilon: Double): Boolean

Compares element-wise two tensors with a specified precision.

fun Tensor<Int>.eq(other: Tensor<Int>): Boolean

Compares element-wise two int tensors

forEachMatrix

inline fun DoubleTensor.forEachMatrix(block: (index: IntArray, matrix: DoubleTensor2D) -> Unit)

get

open operator override fun get(index: IntArray): Double

open operator override fun get(i: Int, j: Int): Double

getDouble

open override fun getDouble(index: IntArray): Double

getFeature

open override fun <F : StructureFeature> getFeature(type: KClass<out F>): F?

getTensor

open fun Tensor<Double>.getTensor(first: Int, second: Int): Tensor<Double>

open fun Tensor<Int>.getTensor(first: Int, second: Int): Tensor<Int>

open override fun Tensor<Double>.getTensor(i: Int): DoubleTensor

open override fun Tensor<Int>.getTensor(i: Int): IntTensor

Returns the tensor at index i For more information: https://pytorch.org/cppdocs/notes/tensor_indexing.html

inv

open override fun StructureND<Double>.inv(): DoubleTensor

Computes the multiplicative inverse matrix of a square matrix input, or of each square matrix in a batched input. Given a square matrix A, return the matrix AInv satisfying A dot AInv == AInv dot A == eye(a.shape[0]). For more information: https://pytorch.org/docs/stable/linalg.html#torch.linalg.inv

map

inline override fun StructureND<Double>.map(transform: DoubleField.(Double) -> Double): DoubleTensor

Applies the transform function to each element of the tensor and returns the resulting modified tensor.

inline override fun StructureND<Int>.map(transform: IntRing.(Int) -> Int): IntTensor

Applies the transform function to each element of the tensor and returns the resulting modified tensor.

mapIndexed

inline override fun StructureND<Double>.mapIndexed(transform: DoubleField.(index: IntArray, Double) -> Double): DoubleTensor

inline override fun StructureND<Int>.mapIndexed(transform: IntRing.(index: IntArray, Int) -> Int): IntTensor

mapIndexedInPlace

inline fun Tensor<Double>.mapIndexedInPlace(operation: DoubleField.(IntArray, Double) -> Double)

inline fun Tensor<Int>.mapIndexedInPlace(operation: (IntArray, Int) -> Int)

mapInPlace

inline fun Tensor<Double>.mapInPlace(operation: (Double) -> Double)

inline fun Tensor<Int>.mapInPlace(operation: (Int) -> Int)

matmul

infix fun StructureND<Double>.matmul(other: StructureND<Double>): DoubleTensor

Broadcasting Matrix product of two tensors.

max

open override fun StructureND<Double>.max(): Double

open override fun StructureND<Int>.max(): Int

Returns the maximum value of all elements in the input tensor or null if there are no values

open override fun StructureND<Double>.max(dim: Int, keepDim: Boolean): DoubleTensor

Returns the maximum value of each row of the input tensor in the given dimension dim.

open override fun StructureND<Int>.max(dim: Int, keepDim: Boolean): IntTensor

Returns the maximum value of each row of the input tensor in the given dimension dim.

mean

fun StructureND<Int>.mean(): Double

min

open override fun StructureND<Double>.min(): Double

open override fun StructureND<Int>.min(): Int

open override fun StructureND<Double>.min(dim: Int, keepDim: Boolean): DoubleTensor

Returns the minimum value of each row of the input tensor in the given dimension dim.

open override fun StructureND<Int>.min(dim: Int, keepDim: Boolean): IntTensor

Returns the minimum value of each row of the input tensor in the given dimension dim.

minus

open operator override fun StructureND<Double>.minus(arg: StructureND<Double>): DoubleTensor

Each element of the tensor arg is subtracted from each element of this tensor. The resulting tensor is returned.

open operator override fun StructureND<Double>.minus(arg: Double): DoubleTensor

Subtracts the scalar arg from each element of this tensor and returns a new resulting tensor.

open operator override fun StructureND<Double>.minus(arg: StructureND<Double>): DoubleTensor

Each element of the tensor arg is subtracted from each element of this tensor. The resulting tensor is returned.

open operator override fun StructureND<Int>.minus(arg: Int): IntTensor

Subtracts the scalar arg from each element of this tensor and returns a new resulting tensor.

open operator override fun StructureND<Int>.minus(arg: StructureND<Int>): IntTensor

Each element of the tensor arg is subtracted from each element of this tensor. The resulting tensor is returned.

minusAssign

open operator override fun Tensor<Double>.minusAssign(arg: StructureND<Double>)

Each element of the tensor arg is subtracted from each element of this tensor.

open operator override fun Tensor<Double>.minusAssign(value: Double)

Subtracts the scalar value from each element of this tensor.

open operator override fun Tensor<Double>.minusAssign(arg: StructureND<Double>)

Each element of the tensor arg is subtracted from each element of this tensor.

open operator override fun Tensor<Int>.minusAssign(value: Int)

Subtracts the scalar value from each element of this tensor.

open operator override fun Tensor<Int>.minusAssign(arg: StructureND<Int>)

Each element of the tensor arg is subtracted from each element of this tensor.

plus

open operator override fun StructureND<Double>.plus(arg: StructureND<Double>): DoubleTensor

Each element of the tensor arg is added to each element of this tensor. The resulting tensor is returned.

open operator override fun StructureND<Double>.plus(arg: Double): DoubleTensor

Adds the scalar arg to each element of this tensor and returns a new resulting tensor.

open operator override fun StructureND<Double>.plus(arg: StructureND<Double>): DoubleTensor

Each element of the tensor arg is added to each element of this tensor. The resulting tensor is returned.

open operator override fun StructureND<Int>.plus(arg: Int): IntTensor

Adds the scalar arg to each element of this tensor and returns a new resulting tensor.

open operator override fun StructureND<Int>.plus(arg: StructureND<Int>): IntTensor

Each element of the tensor arg is added to each element of this tensor. The resulting tensor is returned.

plusAssign

open operator override fun Tensor<Double>.plusAssign(arg: StructureND<Double>)

Each element of the tensor arg is added to each element of this tensor.

open operator override fun Tensor<Double>.plusAssign(value: Double)

Adds the scalar value to each element of this tensor.

open operator override fun Tensor<Double>.plusAssign(arg: StructureND<Double>)

Each element of the tensor arg is added to each element of this tensor.

open operator override fun Tensor<Int>.plusAssign(value: Int)

Adds the scalar value to each element of this tensor.

open operator override fun Tensor<Int>.plusAssign(arg: StructureND<Int>)

Each element of the tensor arg is added to each element of this tensor.

pow

open infix fun StructureND<Double>.pow(pow: Number): StructureND<Double>

reduceElements

inline fun StructureND<Double>.reduceElements(transform: (DoubleBuffer) -> Double): Double

inline fun StructureND<Int>.reduceElements(transform: (IntBuffer) -> Int): Int

rowsByIndices

fun Tensor<Double>.rowsByIndices(indices: IntArray): DoubleTensor

fun Tensor<Int>.rowsByIndices(indices: IntArray): IntTensor

Builds tensor from rows of the input tensor.

set

open operator override fun set(index: IntArray, value: Double)

open operator override fun set(i: Int, j: Int, value: Double)

setDouble

open override fun setDouble(index: IntArray, value: Double)

sum

open override fun StructureND<Double>.sum(): Double

open override fun StructureND<Int>.sum(): Int

open override fun StructureND<Double>.sum(dim: Int, keepDim: Boolean): DoubleTensor

Returns the sum of each row of the input tensor in the given dimension dim.

open override fun StructureND<Int>.sum(dim: Int, keepDim: Boolean): IntTensor

Returns the sum of each row of the input tensor in the given dimension dim.

times

open operator fun StructureND<Double>.times(k: Number): StructureND<Double>

open operator override fun StructureND<Double>.times(arg: StructureND<Double>): DoubleTensor

Each element of the tensor arg is multiplied by each element of this tensor. The resulting tensor is returned.

open operator override fun StructureND<Double>.times(arg: Double): DoubleTensor

Multiplies the scalar arg by each element of this tensor and returns a new resulting tensor.

open operator override fun StructureND<Double>.times(arg: StructureND<Double>): DoubleTensor

Each element of the tensor arg is multiplied by each element of this tensor. The resulting tensor is returned.

open operator override fun StructureND<Int>.times(arg: Int): IntTensor

Multiplies the scalar arg by each element of this tensor and returns a new resulting tensor.

open operator override fun StructureND<Int>.times(arg: StructureND<Int>): IntTensor

Each element of the tensor arg is multiplied by each element of this tensor. The resulting tensor is returned.

timesAssign

open operator override fun Tensor<Double>.timesAssign(arg: StructureND<Double>)

Each element of the tensor arg is multiplied by each element of this tensor.

open operator override fun Tensor<Double>.timesAssign(value: Double)

Multiplies the scalar value by each element of this tensor.

open operator override fun Tensor<Double>.timesAssign(arg: StructureND<Double>)

Each element of the tensor arg is multiplied by each element of this tensor.

open operator override fun Tensor<Int>.timesAssign(value: Int)

Multiplies the scalar value by each element of this tensor.

open operator override fun Tensor<Int>.timesAssign(arg: StructureND<Int>)

Each element of the tensor arg is multiplied by each element of this tensor.

toDoubleTensor

fun StructureND<Int>.toDoubleTensor(): DoubleTensor

toPrettyString

fun DoubleTensor.toPrettyString(): String

toString

open override fun toString(): String

transposed

open override fun StructureND<Double>.transposed(i: Int, j: Int): Tensor<Double>

Returns a tensor that is a transposed version of this tensor. The given dimensions i and j are swapped. For more information: https://pytorch.org/docs/stable/generated/torch.transpose.html

open override fun StructureND<Int>.transposed(i: Int, j: Int): Tensor<Int>

Returns a tensor that is a transposed version of this tensor. The given dimensions i and j are swapped. For more information: https://pytorch.org/docs/stable/generated/torch.transpose.html

unaryMinus

open operator override fun StructureND<Double>.unaryMinus(): DoubleTensor

open operator override fun StructureND<Int>.unaryMinus(): IntTensor

Numerical negative, element-wise.

unaryPlus

open operator fun StructureND<Double>.unaryPlus(): StructureND<Double>

open operator fun StructureND<Int>.unaryPlus(): StructureND<Int>

value

open override fun StructureND<Double>.value(): Double

open override fun StructureND<Int>.value(): Int

Returns a single tensor value of unit dimension. The tensor shape must be equal to 1.

valueOrNull

open override fun StructureND<Double>.valueOrNull(): Double?

open override fun StructureND<Int>.valueOrNull(): Int?

Returns a single tensor value of unit dimension if tensor shape equals to 1.

view

open override fun Tensor<Double>.view(shape: ShapeND): DoubleTensor

open override fun Tensor<Int>.view(shape: ShapeND): IntTensor

Returns a new tensor with the same data as the self tensor but of a different shape. The returned tensor shares the same data and must have the same number of elements, but may have a different size For more information: https://pytorch.org/docs/stable/tensor_view.html

viewAs

open override fun Tensor<Double>.viewAs(other: StructureND<Double>): DoubleTensor

View this tensor as the same size as other. this.viewAs(other) is equivalent to this.view(other.shape). For more information: https://pytorch.org/cppdocs/notes/tensor_indexing.html

open override fun Tensor<Int>.viewAs(other: StructureND<Int>): IntTensor

View this tensor as the same size as other. this.viewAs(other) is equivalent to this.view(other.shape). For more information: https://pytorch.org/cppdocs/notes/tensor_indexing.html